Barcodes What information does this barcode tell the

Information stored on a barcode • Product identification • Size/weight of product • Where

Barcodes What information is NOT stored on a barcode? © www. teach-ict. com All

Information not stored on a barcode • Product name • Price of the product

Barcodes What equipment is used to read a barcode? © www. teach-ict. com All

Barcodes Barcode scanner at the checkout © www. teach-ict. com All Rights Reserved Hand

Barcodes The lengths and positions of the spaces and bars are analysed by a

Barcodes How does a barcode reader work? Click here to find out © www.

Barcodes What happens at the till if the barcode can’t be read by the

Barcodes If the barcode can’t be read, an error message will be shown to

Barcodes If there is an error, what will the checkout operator do next? ©

Barcodes They will type in the numbers shown below the bars. But it is

Barcodes To prevent such errors, the numbers have a build-in error detection method. It

Barcodes The check digit is the final number. It is used by the computer

Barcodes Using the check digit calculator site, work out the check digit from the